Air handling unit controller · BACnet points list

Komfovent C5 controller BACnet points list

Updated 4 November 2026

Short answer

The Komfovent C5 is the built-in controller of Komfovent air handling units. It speaks BACnet IP on its RJ-45 Ethernet port (no MS/TP). The list has 237 objects: sensor readings as AIs, output signals as AOs, wired contacts as BIs, relay outputs as BOs, alarms as BVs, and all commands, setpoints and function settings as AVs. On/off, modes and enable flags are AVs with numeric codes, not binary or multistate objects.

This page lists 237 BACnet objects for the Komfovent C5 controller — 85 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Komfovent’s own free documentation, linked below.

Manufacturer: Komfovent
Model: C5 controller
Equipment: Air handling unit controller
Equipment type: Rooftop units, AHUs & DOAS
BACnet objects: 237 (85 writable)
Transport: BACnet IP
Firmware: Not stated
Default device instance: 1100
Also known as: Komfovent C5, C5.1, BACnet-C5
Source document: BACnet Connection C5 - Installation and Service Manual · BACnet-C5_25-07 · rev. 2025-07

Download CSV 237 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against Komfovent’s current documentation and the live device before use. Not official Komfovent information. Terms of use.

BMS integration notes: Komfovent C5 controller

Integration in brief

Start and stop the unit with AV 0 Unit On/Off and pick the ventilation mode with AV 2 Mode selection (Comfort1/2, Economy1/2, Special, Program). Each mode has its own supply/extract flow and temperature setpoint AVs. Read AV 1 Current mode, the supply, extract and outdoor temperatures (AI 0-2), the alarm BVs and BO 22 Alarm DOUT; reset alarms by writing 1 to AV 58.

Minimum points to map

The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.

Object	Name	Why	Access
AV 0	Unit On/Off	Unit on/off command (1 = on)	Write
AV 2	Mode selection	Ventilation mode command, 1-6	Write
AV 5	Comfort1 Setpoint	Comfort1 supply temperature setpoint	Write
AV 58	Actual alarms reset	Write 1 to reset current alarms	Write
AV 1	Current mode	Active mode (0 = off/standby)	Read
AI 0	Supply air temperature	Supply air temperature	Read
AI 1	Extract air temperature	Extract air temperature	Read
AI 2	Outdoor air temperature	Outdoor air temperature	Read
BO 22	Alarm DOUT	Common alarm output (1 = alarm)	Read

Enable & remote start

AV 0 Unit On/Off switches the unit (0 = off, 1 = on). AV 2 Mode selection picks the operating mode; 6 = Program hands control to the unit's own schedule.

Sensors & values from the BMS

AV 73 External room temperature sensor accepts a room temperature from the BMS; a value outside -50..+120 °C disables the override.

Network setup

Factory network settings: IP 192.168.0.50, mask 255.255.0.0, BACnet port 47808, BACnet ID 1100.
Change them in the controller web server (Settings > Connectivity) or on the C5.1 panel (Settings > Air handling unit > Connectivity).
Komfovent recommends a polling interval of at least 1 second.
AV 83 enables BBMD (BACnet Broadcast Management Device) on the controller.

Watch out for

Commands and enable flags are AVs holding 0/1 or mode codes, not BVs or MVs.
Flow setpoint units follow AV 72; check it before writing flows.
AV 59-61 run-hour counters and AV 67-71 clock values are writable; don't write them cyclically.
AV 84 starts a heat exchanger calibration when 1 is written.

Komfovent C5 controller BACnet objects

Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.

237 of 237 shown

Type

Access

Units

Show

Komfovent C5 controller BACnet Points List
			Description			States
AImin	0	Supply air temperature	Range -50.0..+120.0	°C	Read
AImin	1	Extract air temperature	Range -50.0..+120.0	°C	Read
AImin	2	Outdoor air temperature	Range -50.0..+120.0	°C	Read
AI	3	Exhaust air temperature	Range -50.0..+120.0	°C	Read
AI	4	Water temperature	Range -50.0..+120.0	°C	Read
AI	5	Air quality	Range 0..100	%	Read
AI	6	Supply air humidity	Range 0..100	%RH	Read
AI	7	Supply air flow	Range 0..1000000	m3/h, l/s, m3/s or Pa (per AV 72)	Read
AI	8	Exhaust air flow	Range 0..1000000	m3/h, l/s, m3/s or Pa (per AV 72)	Read
AI	9	Outdoor air filter pressure	Range 0..5500	Pa	Read
AI	10	Extract air filter pressure	Range 0..5500	Pa	Read
AI	11	Zone 1 supply air temperature	Range -50.0..+120.0	°C	Read
AI	12	Zone 1 water temperature	Range -30.0..+120.0	°C	Read
AI	13	Zone 2 supply air temperature	Range -50.0..+120.0	°C	Read
AI	14	Zone 2 water temperature	Range -30.0..+120.0	°C	Read
AI	15	Internal supply air temperature	Range -50.0..+120.0	°C	Read
AI	16	Zone 1 air quality	Range 0..100	%	Read
AI	17	Zone 1 heater temperature	Range 0..+120.0	°C	Read
AI	18	Zone 2 air quality	Range 0..100	%	Read
AI	19	Zone 2 heater temperature	Range 0..+120.0	°C	Read
AI	20	Supply temperature set-point	Range +5..+45	°C	Read
AI	21	Supply air absolute humidity	Range 0..40.0	g/m3 or g/kg	Read
AI	22	Supply air pressure	Range 0..5500	Pa	Read
AI	23	Extract air pressure	Range 0..5500	Pa	Read
AO	0	Water heater level	Range 0..100	%	Read
AO	1	Water cooler level	Range 0..100	%	Read
AO	2	Humidifier level	Range 0..100	%	Read
AO	3	Heat exchanger level	Range 0..100	%	Read
AO	4	Recirculation level	Range 0..100	%	Read
AO	5	Supply fan level	Range 0..100	%	Read
AO	6	Exhaust fan level	Range 0..100	%	Read
AO	7	Outdoor air damper level	Range 0..100	%	Read
AO	8	Exhaust air damper level	Range 0..100	%	Read
AO	9	El. Heater level	Range 0..100	%	Read
AO	10	DX level	Range -100..+100	%	Read
AO	11	Heat pump level	Range -100..+100	%	Read
AO	12	Zone 1 level/heater level	Range -100..+100	%	Read
AO	13	Zone 2 level/heater level	Range -100..+100	%	Read
AO	14	Zone 1 cooler level	Range 0..100	%	Read
AO	15	Zone 2 cooler level	Range 0..100	%	Read
AO	16	Zone 1 temperature setpoint/error	Setpoint (+5..+40 °C) or error (0..100 %)	°C or %	Read
AO	17	Zone 2 temperature setpoint/error	Setpoint (+5..+40 °C) or error (0..100 %)	°C or %	Read
BI	0	OVR			Read	0=open, 1=closed
BI	1	External stop			Read	0=open, 1=closed
BI	2	Zone 1 electric heater TK100			Read	0=open, 1=closed
BI	3	Zone 1 electric heater TK60			Read	0=open, 1=closed
BI	4	Zone 1 electric heater TK70			Read	0=open, 1=closed
BI	5	Zone 1 low water temperature			Read	0=open, 1=closed
BI	6	Zone 1 combined coil			Read	0=open, 1=closed
BI	7	Zone 1 external stop			Read	0=open, 1=closed
BI	8	Zone 2 electric heater TK100			Read	0=open, 1=closed
BI	9	Zone 2 electric heater TK60			Read	0=open, 1=closed
BI	10	Zone 2 electric heater TK70			Read	0=open, 1=closed
BI	11	Zone 2 low water temperature			Read	0=open, 1=closed
BI	12	Zone 2 combined coil			Read	0=open, 1=closed
BI	13	Zone 2 external stop			Read	0=open, 1=closed
BI	14	Outdoor air filter			Read	0=open, 1=closed
BI	15	Extract air filter			Read	0=open, 1=closed
BI	16	C5 Control			Read	0=open, 1=closed
BO	0	Water heating pump			Read	0=stop, 1=run
BO	1	Water cooling pump			Read	0=stop, 1=run
BO	2	Zone 1 stage 1			Read	0=stop, 1=run
BO	3	Zone 1 stage 2			Read	0=stop, 1=run
BO	4	Zone 1 stage 3			Read	0=stop, 1=run
BO	5	Zone 1 stage 4			Read	0=stop, 1=run
BO	6	Zone 1 heating water pump			Read	0=stop, 1=run
BO	7	Zone 1 cooling water pump			Read	0=stop, 1=run
BO	8	Zone 1 DX level unit reverse			Read	0=stop, 1=run
BO	9	Zone 1 DX modulated unit operation			Read	0=stop, 1=run
BO	10	Zone 1 DX modulated unit cooling			Read	0=stop, 1=run
BO	11	Zone 1 DX modulated unit heating			Read	0=stop, 1=run
BO	12	Zone 2 stage 1			Read	0=stop, 1=run
BO	13	Zone 2 stage 2			Read	0=stop, 1=run
BO	14	Zone 2 stage 3			Read	0=stop, 1=run
BO	15	Zone 2 stage 4			Read	0=stop, 1=run
BO	16	Zone 2 heating water pump			Read	0=stop, 1=run
BO	17	Zone 2 cooling water pump			Read	0=stop, 1=run
BO	18	Zone 2 DX level unit reverse			Read	0=stop, 1=run
BO	19	Zone 2 DX modulated unit operation			Read	0=stop, 1=run
BO	20	Zone 2 DX modulated unit cooling			Read	0=stop, 1=run
BO	21	Zone 2 DX modulated unit heating			Read	0=stop, 1=run
BOmin	22	Alarm DOUT			Read	0=no alarm, 1=alarm
BO	23	AQC active			Read	0=stop, 1=run
BO	24	OCV active			Read	0=stop, 1=run
BO	25	MTC active			Read	0=stop, 1=run
BO	26	OVR active			Read	0=stop, 1=run
BO	27	SNC active			Read	0=stop, 1=run
BO	28	OOD active			Read	0=stop, 1=run
BO	29	REC active			Read	0=stop, 1=run
BO	30	HUM active			Read	0=stop, 1=run
BO	31	Defrost active			Read	0=stop, 1=run
BV	0	Low supply air flow			Read
BV	1	Low extract air flow			Read
BV	2	VAV calibration fail			Read
BV	3	Change outdoor air filter			Read
BV	4	Change extract air filter			Read
BV	5	Electric heater off			Read
BV	6	High pressure on compressor			Read
BV	7	Low pressure on compressor			Read
BV	8	Service time			Read
BV	9	Service mode			Read
BV	10	Supply air temp. sensor failure			Read
BV	11	Extract air temp. sensor failure			Read
BV	12	Outdoor air temp. sensor failure			Read
BV	13	Exhaust air temp. sensor failure			Read
BV	14	Water temp. sensor failure			Read
BV	15	Return water temp low			Read
BV	16	Internal fire alarm			Read
BV	17	External fire alarm			Read
BV	18	External stop			Read
BV	19	Heat exchanger failure			Read
BV	20	Heat exchanger icing			Read
BV	21	Low supply air temperature			Read
BV	22	High supply air temperature			Read
BV	23	Electric heater overheat			Read
BV	24	Evaporator air temp. sensor failure			Read
BV	25	Evaporator coil temp. sensor failure			Read
BV	26	Compressor failure			Read
BV	27	Supply fan drive failure			Read
BV	28	Supply fan drive overload			Read
BV	29	Supply fan motor failure			Read
BV	30	Supply fan motor overload			Read
BV	31	Exhaust drive failure			Read
BV	32	Exhaust fan drive overload			Read
BV	33	Exhaust fan motor failure			Read
BV	34	Exhaust fan motor overload			Read
BV	35	Rotor drive failure			Read
BV	36	Rotor drive overload			Read
BV	37	Rotor motor failure			Read
BV	38	Rotor motor overload			Read
BV	39	Communication error			Read
BV	40	Controller failure			Read
BV	41	Compressor off			Read
BV	42	Evaporator icing			Read
BV	43	Zone 1 TK100 alarm			Read
BV	44	Zone 1 TK70 alarm			Read
BV	45	Zone 1 TK60 alarm			Read
BV	46	Zone 1 low water temperature			Read
BV	47	Zone 1 external stop			Read
BV	48	Zone 2 TK100 alarm			Read
BV	49	Zone 2 TK70 alarm			Read
BV	50	Zone 2 TK60 alarm			Read
BV	51	Zone 2 low water temperature			Read
BV	52	Zone 2 external stop			Read
BV	53	Low heat exchanger efficiency			Read
BV	54	Water pump / coil alarm			Read
AVmin	0	Unit On/Off			Write	0=Off, 1=On
AVmin	1	Current mode			Read	0=Off/Standby, 1=Comfort1, 2=Comfort2, 3=Economy1, 4=Economy2, 5=Special
AVmin	2	Mode selection			Write	1=Comfort1, 2=Comfort2, 3=Economy1, 4=Economy2, 5=Special, 6=Program
AV	3	Comfort1 Supply flow	Range 0..200000	m3/h, l/s, m3/s or Pa (per AV 72)	Write
AV	4	Comfort1 Extract flow	Range 0..200000	m3/h, l/s, m3/s or Pa (per AV 72)	Write
AVmin	5	Comfort1 Setpoint	Range +5..+40	°C	Write
AV	6	Comfort2 Supply flow	Range 0..200000	m3/h, l/s, m3/s or Pa (per AV 72)	Write
AV	7	Comfort2 Extract flow	Range 0..200000	m3/h, l/s, m3/s or Pa (per AV 72)	Write
AV	8	Comfort2 Setpoint	Range +5..+40	°C	Write
AV	9	Economy1 Supply flow	Range 0..200000	m3/h, l/s, m3/s or Pa (per AV 72)	Write
AV	10	Economy1 Extract flow	Range 0..200000	m3/h, l/s, m3/s or Pa (per AV 72)	Write
AV	11	Economy1 Setpoint	Range +5..+40	°C	Write
AV	12	Economy2 Supply flow	Range 0..200000	m3/h, l/s, m3/s or Pa (per AV 72)	Write
AV	13	Economy2 Extract flow	Range 0..200000	m3/h, l/s, m3/s or Pa (per AV 72)	Write
AV	14	Economy2 Setpoint	Range +5..+40	°C	Write
AV	15	Special Supply flow	Range 0..200000	m3/h, l/s, m3/s or Pa (per AV 72)	Write
AV	16	Special Extract flow	Range 0..200000	m3/h, l/s, m3/s or Pa (per AV 72)	Write
AV	17	Special Setpoint	Range +5..+40	°C	Write
AV	18	Special mode Heating			Write	0=Disable, 1=Enable
AV	19	Special mode Cooling			Write	0=Disable, 1=Enable
AV	20	Special mode Recirculation			Write	0=Disable, 1=Enable
AV	21	Special mode Humidifying			Write	0=Disable, 1=Enable
AV	22	Special mode Dehumidifying			Write	0=Disable, 1=Enable
AV	23	Flow control mode			Write	0=CAV, 1=VAV, 2=DCV
AV	24	Temp. control mode			Write	0=Supply, 1=Extract, 2=Room, 3=Balance
AV	25	AQC Enable			Write	0=Disable, 1=Enable
AV	26	AQC Setpoint 1	200-1800 ppm, 10-90 % or 5-45 °C by sensor type	ppm, % or °C (by sensor type)	Write
AV	27	AQC Mode 1			Write	1=Comfort1, 2=Comfort2, 3=Economy1, 4=Economy2, 5=Special
AV	28	AQC Setpoint 2	200-1800 ppm, 10-90 % or 5-45 °C by sensor type	ppm, % or °C (by sensor type)	Write
AV	29	AQC Mode 2			Write	1=Comfort1, 2=Comfort2, 3=Economy1, 4=Economy2, 5=Special
AV	30	OCV Enable			Write	0=Disable, 1=Enable
AV	31	OCV Winter compensation stop	Range -40.0..+50.0	°C	Write
AV	32	OCV Winter compensation start	Range -40.0..+50.0	°C	Write
AV	33	OCV Summer compensation start	Range -40.0..+50.0	°C	Write
AV	34	OCV Summer compensation stop	Range -40.0..+50.0	°C	Write
AV	35	MTC Enable			Write	0=Disable, 1=Enable
AV	36	MTC Setpoint	Range -40.0..+50.0	°C	Write
AV	37	OVR Enable			Write	0=Disable, 1=Enable
AV	38	OVR Type			Write	0=Alltime, 1=If on, 2=If off
AV	39	OVR Mode			Write	0=Standby, 1=Comfort1, 2=Comfort2, 3=Economy1, 4=Economy2, 5=Special, 6=Program
AV	40	SNC Enable			Write	0=Disable, 1=Enable
AV	41	SNC Start temperature	Range 15.0..+50.0	°C	Write
AV	42	SNC Stop temperature	Range 15.0..+50.0	°C	Write
AV	43	OOD Enable			Write	0=Disable, 1=Enable
AV	44	OOD Setpoint	200-1800 ppm, 10-90 % or 5-45 °C by sensor type	ppm, % or °C (by sensor type)	Write
AV	45	REC Enable			Write	0=Disable, 1=Enable
AV	46	REC Setpoint 1	200-1800 ppm, 10-90 % or 5-45 °C by sensor type	ppm, % or °C (by sensor type)	Write
AV	47	REC Mode 1			Write	1=Comfort1, 2=Comfort2, 3=Economy1, 4=Economy2, 5=Special
AV	48	REC Setpoint 2	200-1800 ppm, 10-90 % or 5-45 °C by sensor type	ppm, % or °C (by sensor type)	Write
AV	49	REC Mode 2			Write	1=Comfort1, 2=Comfort2, 3=Economy1, 4=Economy2, 5=Special
AV	50	REC Min. Fresh Air 1	Range 0..100	%	Write
AV	51	REC Min. Fresh Air 2	Range 0..100	%	Write
AV	52	REC Winter end	Range -40.0..+50.0	°C	Write
AV	53	REC Winter start	Range -40.0..+50.0	°C	Write
AV	54	REC Summer start	Range -40.0..+50.0	°C	Write
AV	55	REC Summer end	Range -40.0..+50.0	°C	Write
AV	56	REC Default recirculation	Range 0..100	%	Write
AV	57	REC Activated recirculation	Range 0..100	%	Write
AV	77	HUM Enable			Write	0=Disable, 1=Enable
AV	78	HUM Setpoint 1	Range 10..90	%	Write
AV	79	HUM Mode 1			Write	1=Comfort1, 2=Comfort2, 3=Economy1, 4=Economy2, 5=Special
AV	80	HUM Setpoint 2	Range 10..90	%	Write
AV	81	HUM Mode 2			Write	1=Comfort1, 2=Comfort2, 3=Economy1, 4=Economy2
AV	84	CF heatexchanger calibration	Write 1 to start heat exchanger calibration		Write	0=No calibration, 1=Calibrated, 2=Calibrating
AV	85	HUM mode			Write	0=Supply, 1=Indoor+Supply, 2=Indoor
AV	86	HUM Type			Write	0=RH, 1=AH
AV	87	HUM Units			Write	0=g/m3, 1=g/kg
AV	88	OCV Minimum airflow	Range 20..100	%	Write
AV	89	Water heater: Enable/Disable			Write	0=Disable, 1=Enable
AV	90	Water cooler: Enable/Disable			Write	0=Disable, 1=Enable
AVmin	58	Actual alarms reset	Write 1 to reset current alarms		Write	1=Reset current alarm
AV	59	Air heater operation	Range 0..2^32	hours	Write
AV	60	Supply fan operation	Range 0..2^32	hours	Write
AV	61	Exhaust fan operation	Range 0..2^32	hours	Write
AV	62	Heat exchanger thermal efficiency	Range 1-100; 255 = none	%	Read
AV	63	Heat exchanger recovery	Range 0..2^32	watt	Read
AV	64	Thermal energy saving	Range 0..100	%	Read
AV	65	Supply SFP	Range 0..655		Read
AV	66	Exhaust SFP	Range 0..655		Read
AV	67	Day	Range 1..31	days	Write
AV	68	Month	Range 1..12	months	Write
AV	69	Year	Range 2000..2250	years	Write
AV	70	Hours	Range 0..23	hours	Write
AV	71	Minutes	Range 0..59	minutes	Write
AV	72	Flow units			Write	0=m3/h, 1=l/s, 2=m3/s, 3=Pa
AV	73	External room temperature sensor	Value from BMS; outside range disables override	°C	Write
AV	74	Zone 1 setpoint	Range -50.0..+40.0	°C	Write
AV	75	Zone 2 setpoint	Range -50.0..+40.0	°C	Write
AV	76	Digital input IN4 override			Write	-1=disabled, 0=heating, 1=cooling, 2=error
AV	82	Daylight saving time			Write	0=Disable, 1=Enable
AV	83	BACnet Broadcast Management Device			Write	0=Disable, 1=Enable

Object ID lookup: Komfovent C5 controller point IDs by name

AI0Supply air temperature
AI1Extract air temperature
AI2Outdoor air temperature
AI3Exhaust air temperature
AI4Water temperature
AI5Air quality
AI6Supply air humidity
AI7Supply air flow
AI8Exhaust air flow
AI9Outdoor air filter pressure
AI10Extract air filter pressure
AI11Zone 1 supply air temperature
AI12Zone 1 water temperature
AI13Zone 2 supply air temperature
AI14Zone 2 water temperature
AI15Internal supply air temperature
AI16Zone 1 air quality
AI17Zone 1 heater temperature
AI18Zone 2 air quality
AI19Zone 2 heater temperature
AI20Supply temperature set-point
AI21Supply air absolute humidity
AI22Supply air pressure
AI23Extract air pressure
AO0Water heater level
AO1Water cooler level
AO2Humidifier level
AO3Heat exchanger level
AO4Recirculation level
AO5Supply fan level
AO6Exhaust fan level
AO7Outdoor air damper level
AO8Exhaust air damper level
AO9El. Heater level
AO10DX level
AO11Heat pump level
AO12Zone 1 level/heater level
AO13Zone 2 level/heater level
AO14Zone 1 cooler level
AO15Zone 2 cooler level
AO16Zone 1 temperature setpoint/error
AO17Zone 2 temperature setpoint/error
BI0OVR
BI1External stop
BI2Zone 1 electric heater TK100
BI3Zone 1 electric heater TK60
BI4Zone 1 electric heater TK70
BI5Zone 1 low water temperature
BI6Zone 1 combined coil
BI7Zone 1 external stop
BI8Zone 2 electric heater TK100
BI9Zone 2 electric heater TK60
BI10Zone 2 electric heater TK70
BI11Zone 2 low water temperature
BI12Zone 2 combined coil
BI13Zone 2 external stop
BI14Outdoor air filter
BI15Extract air filter
BI16C5 Control
BO0Water heating pump
BO1Water cooling pump
BO2Zone 1 stage 1
BO3Zone 1 stage 2
BO4Zone 1 stage 3
BO5Zone 1 stage 4
BO6Zone 1 heating water pump
BO7Zone 1 cooling water pump
BO8Zone 1 DX level unit reverse
BO9Zone 1 DX modulated unit operation
BO10Zone 1 DX modulated unit cooling
BO11Zone 1 DX modulated unit heating
BO12Zone 2 stage 1
BO13Zone 2 stage 2
BO14Zone 2 stage 3
BO15Zone 2 stage 4
BO16Zone 2 heating water pump
BO17Zone 2 cooling water pump
BO18Zone 2 DX level unit reverse
BO19Zone 2 DX modulated unit operation
BO20Zone 2 DX modulated unit cooling
BO21Zone 2 DX modulated unit heating
BO22Alarm DOUT
BO23AQC active
BO24OCV active
BO25MTC active
BO26OVR active
BO27SNC active
BO28OOD active
BO29REC active
BO30HUM active
BO31Defrost active
BV0Low supply air flow
BV1Low extract air flow
BV2VAV calibration fail
BV3Change outdoor air filter
BV4Change extract air filter
BV5Electric heater off
BV6High pressure on compressor
BV7Low pressure on compressor
BV8Service time
BV9Service mode
BV10Supply air temp. sensor failure
BV11Extract air temp. sensor failure
BV12Outdoor air temp. sensor failure
BV13Exhaust air temp. sensor failure
BV14Water temp. sensor failure
BV15Return water temp low
BV16Internal fire alarm
BV17External fire alarm
BV18External stop
BV19Heat exchanger failure
BV20Heat exchanger icing
BV21Low supply air temperature
BV22High supply air temperature
BV23Electric heater overheat
BV24Evaporator air temp. sensor failure
BV25Evaporator coil temp. sensor failure
BV26Compressor failure
BV27Supply fan drive failure
BV28Supply fan drive overload
BV29Supply fan motor failure
BV30Supply fan motor overload
BV31Exhaust drive failure
BV32Exhaust fan drive overload
BV33Exhaust fan motor failure
BV34Exhaust fan motor overload
BV35Rotor drive failure
BV36Rotor drive overload
BV37Rotor motor failure
BV38Rotor motor overload
BV39Communication error
BV40Controller failure
BV41Compressor off
BV42Evaporator icing
BV43Zone 1 TK100 alarm
BV44Zone 1 TK70 alarm
BV45Zone 1 TK60 alarm
BV46Zone 1 low water temperature
BV47Zone 1 external stop
BV48Zone 2 TK100 alarm
BV49Zone 2 TK70 alarm
BV50Zone 2 TK60 alarm
BV51Zone 2 low water temperature
BV52Zone 2 external stop
BV53Low heat exchanger efficiency
BV54Water pump / coil alarm
AV0Unit On/Off
AV1Current mode
AV2Mode selection
AV3Comfort1 Supply flow
AV4Comfort1 Extract flow
AV5Comfort1 Setpoint
AV6Comfort2 Supply flow
AV7Comfort2 Extract flow
AV8Comfort2 Setpoint
AV9Economy1 Supply flow
AV10Economy1 Extract flow
AV11Economy1 Setpoint
AV12Economy2 Supply flow
AV13Economy2 Extract flow
AV14Economy2 Setpoint
AV15Special Supply flow
AV16Special Extract flow
AV17Special Setpoint
AV18Special mode Heating
AV19Special mode Cooling
AV20Special mode Recirculation
AV21Special mode Humidifying
AV22Special mode Dehumidifying
AV23Flow control mode
AV24Temp. control mode
AV25AQC Enable
AV26AQC Setpoint 1
AV27AQC Mode 1
AV28AQC Setpoint 2
AV29AQC Mode 2
AV30OCV Enable
AV31OCV Winter compensation stop
AV32OCV Winter compensation start
AV33OCV Summer compensation start
AV34OCV Summer compensation stop
AV35MTC Enable
AV36MTC Setpoint
AV37OVR Enable
AV38OVR Type
AV39OVR Mode
AV40SNC Enable
AV41SNC Start temperature
AV42SNC Stop temperature
AV43OOD Enable
AV44OOD Setpoint
AV45REC Enable
AV46REC Setpoint 1
AV47REC Mode 1
AV48REC Setpoint 2
AV49REC Mode 2
AV50REC Min. Fresh Air 1
AV51REC Min. Fresh Air 2
AV52REC Winter end
AV53REC Winter start
AV54REC Summer start
AV55REC Summer end
AV56REC Default recirculation
AV57REC Activated recirculation
AV77HUM Enable
AV78HUM Setpoint 1
AV79HUM Mode 1
AV80HUM Setpoint 2
AV81HUM Mode 2
AV84CF heatexchanger calibration
AV85HUM mode
AV86HUM Type
AV87HUM Units
AV88OCV Minimum airflow
AV89Water heater: Enable/Disable
AV90Water cooler: Enable/Disable
AV58Actual alarms reset
AV59Air heater operation
AV60Supply fan operation
AV61Exhaust fan operation
AV62Heat exchanger thermal efficiency
AV63Heat exchanger recovery
AV64Thermal energy saving
AV65Supply SFP
AV66Exhaust SFP
AV67Day
AV68Month
AV69Year
AV70Hours
AV71Minutes
AV72Flow units
AV73External room temperature sensor
AV74Zone 1 setpoint
AV75Zone 2 setpoint
AV76Digital input IN4 override
AV82Daylight saving time
AV83BACnet Broadcast Management Device

Integration notes

AIs, AOs, BIs, BOs and BVs are read-only; most AVs are R/W.
Flow AVs and AIs use the unit chosen in AV 72 Flow units (m3/h, l/s, m3/s or Pa).
AQC, OOD and REC setpoints take ppm, % or °C depending on the air quality sensor type fitted.
AV numbers have gaps by section: function settings use 0-57 and 77-90; alarm reset, counters and user settings use 58-76, 82 and 83.
Zone 1 / Zone 2 objects only matter when the extra zones are configured.

Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the C5 controller and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.

Questions about the Komfovent C5 controller

How many BACnet points does the Komfovent C5 controller have?

This list has 237 BACnet objects: 24 analog inputs, 18 analog outputs, 91 analog values, 17 binary inputs, 32 binary outputs, 55 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Komfovent C5 controller BACnet points are writable?

85 of the 237 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done.

Where is the official Komfovent C5 controller BACnet documentation?

The source is BACnet Connection C5 - Installation and Service Manual (BACnet-C5_25-07), revision 2025-07, published free by Komfovent at https://komfovent.com/en/downloads/Bacnet_connection_C5_EN.pdf.

What are the minimum BACnet points to integrate the Komfovent C5 controller?

Start with AV 0 Unit On/Off (Unit on/off command (1 = on)); AV 2 Mode selection (Ventilation mode command, 1-6); AV 5 Comfort1 Setpoint (Comfort1 supply temperature setpoint); AV 58 Actual alarms reset (Write 1 to reset current alarms); AV 1 Current mode (Active mode (0 = off/standby)); AI 0 Supply air temperature (Supply air temperature); AI 1 Extract air temperature (Extract air temperature); AI 2 Outdoor air temperature (Outdoor air temperature); BO 22 Alarm DOUT (Common alarm output (1 = alarm)).

How do I enable BMS control of the Komfovent C5 controller?

AV 0 Unit On/Off switches the unit (0 = off, 1 = on). AV 2 Mode selection picks the operating mode; 6 = Program hands control to the unit's own schedule.

Can the BMS supply sensor values to the Komfovent C5 controller?

AV 73 External room temperature sensor accepts a room temperature from the BMS; a value outside -50..+120 °C disables the override.

How do I check these points on the real C5 controller?

Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.

More Komfovent BACnet points lists

Source: BACnet Connection C5 - Installation and Service Manual · BACnet-C5_25-07 · rev. 2025-07. Object names, instances and units are reproduced as published; descriptions are our own.